204 bombyliiDjE. 



4th vein, and at the base of both the 3rd and 4th posterior cells ; 

 adventitious spots freely occur about the tips of the 2nd and 3rd 

 longitudinal veins, and occasionally in other parts, and the 3rd 

 posterior cell is often more or less bisected longitudinally by an 

 additional incomplete veinlet. The 1st posterior cell is not infre- 

 quently closed just before the border. Halteres black. 



Length, 7-10 mm. 



Redescribed from several specimens, mostly in inferior condition,, 

 in the Indian Museum from Soondrijal, Chitlong, Nagorkote, 

 Pharping, and Khumdhik, iii. 1909 — all in Nepal ; Dehra Dun, xi. 

 1907 [Lt.-Col. Wyville Thomson'] ; Nairn Tal District, 4. iv. 1910;. 

 Mussoorie, ix. 1906 ; Simla, x. 1911 ; Allahabad, v. 1911 and xii. 

 1910 (Chatterjee); Bandhara, Central Provinces, l.xii.1912 (Imms); 

 Mahagany, Ceylon, 17. i. 1912 (Col. Yerbury); Castle Rock, K 

 Kanara District, 11-26. x. 1916 (Kemp); Madhupur, Bengal, 

 16. x. 1909 (Paiva) ; Pipera, Gondo District, United Provinces, 

 9. iii. 1909 ; Ootacamund, S. India, 24-31. xii. 1913 (Fletcher) ; . 

 lower ranges, N. Khasi Hills, 1878 (Chennell). 



There seems no reasonable doubt of this being Walker's 

 insuldta, described originally from the " East Indies." It is 

 common through Nepal and extends to the Indian plains. 

 Walker says the sides of the abdomen are fringed alternately 

 with black and yellow hairs, but this does not appear to be the 

 case, though possibly in perfect specimens the white scales on 

 the 4th and 7th segments may overhang the margin sufficiently 

 to produce this effect. His description also of the wing-spots 

 does not quite agree with mine, but these markings are admittedly 

 variable. 



A specimen in the Indian Museum from Dehra Dun labelled 

 " E. S-notata, Big., sp. nov."' is certainly identical, and is 

 apparently merely a MS. name ; a second specimen with precisely 

 similar markings is from Calcutta. 



A further specimen from " Thingaunyinaung to Myawadi,"' 

 Lower Burma, 900 ft., 24-26. xi. 1911 (Gravely), has the spots in 

 the clear part of the wing all so enlarged and blurred that hardly 

 any grey surface remains. 



Some notes of mine on the variation of the wing-markings 

 appeared recently (Rec. Ind. Mus. ii, p. 446). 



In comparing the descriptions of insulata, Walk., bengalensis,. 

 Macq., and brahma, Sch., it will be seen that they are somewhat 

 similar. The latter I have not seen, but a number of specimens of 

 both insulata and bengalensis in the Indian Museum (both iden- 

 tified by me, but, I think, without possibility of doubt) prove that 

 at least these two are quite good and distinct species. E. insulata 

 is known by the black or deep blackish-brown colour of the baso- 

 costal band, which, though not actually clearly defined, stands 

 out if a number of specimens be glanced at collectively ; whereas 

 in bengalensis the colour is brown, without any trace of black, and 

 there is no apparent line of demarcation between the anterior 

 half and the posterior half, the latter being only a little lighter. 



